1,2-Dimethoxyethane → 5-((4-(Benzyloxy)benzyl)(4H-1,2,4-triazol-4-yl)amino)biphenyl-2,4'-dicarbonitrile

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Reaction Steps

A mixture of 4-((4-(benzyloxy)benzyl)(4H-1,2,4-triazol-4-yl)amino)-2-bromobenzonitrile (CAB05114, 0.460 g, 1.0 mmol), 4-cyanophenylboronic acid (0.184 g, 1.25 mmol), dimethoxyethane (20 mL) and 2M Na2CO3 (20 mL) was heated to reflux before Pd2(dba)3 (0.05 g) was added and heating was continued for 5 hours. After cooling to room temperature EtOAc (50 mL) was added to and the mixture was filtered (celite). The organic layer was separated, dried (Na2SO4) and concentrated under reduced pressure. The residue was purified by flash chromatography [SiO2, CHCl3/acetone (2:1)] to afford CAB06075 (4.03 g, 71%) as a white solid. Mp. 234-237-113° C.; 1H NMR (400 MHz, DMSO-d6) δ 5.02 (s, 4H), 6.72 (dd, J=8.6, 2.7 Hz, 1H), 6.91 (d, J=2.7 Hz, 1H), 6.95 (AA′BB′, 2H), 7.21 (AA′BB′, 2H), 7.30-7.45 (m, 5H), 7.75 (AA′BB′, 2H), 7.90 (d, J=8.6 Hz, 1H), 8.02 (AA′BB′, 2H), 8.75 (s, 2H); 13C NMR (100.6 MHz, DMSO-d6) δ 56.5, 69.2, 101.7, 111.7, 113.4, 113.7, 114.1, 114.8, 118.3, 118.4, 126.4, 127.8, 127.9, 128.4, 129.7, 130.0, 130.1, 132.7, 135.6, 136.9, 142.3, 143.3, 144.5, 145.9, 151.5, 158.2; LRMS (ES+): m/z 4833 (100%, [M+H]+); HRMS (ES+) calcd for C30H23N6O [M+H]+: 483.1928. found 483.1918.

Provenance & Evidence